FLOOD00448

• County: Douglas
• Community: Parker
• Stream Name: Sulphur Gulch
• Title: LOMR - Affected Panel 080310 0070 C - Case No. 95-08-008P
• Date: 2/21/1995
• Prepared For: Parker
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

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Federal Emergency Management Agency
Washington, D,C. 20472

CERTIFIED MAIL
RETURN RECEIPT REQUESTED

IN REPLY REFER TO:
Case No.: 95-08-008P

The Honorable Greg Lopez
Mayor, Town of Parker
20120 East Main Street
Parker, Colorado 80134

Community: Town of Parker,
Colorado
Community No.: 080310
Panel Affected: 0070 C
Effective Date of
This Revision: FE B 211995

102-I-A-C

Dear Mayor Lopez:

This is in response to a request for a revision to the effective Flood
Insurance Study (FIS) and National Flood Insurance Program (NFIP) map for
your community. Specifically, this responds to a letter dated October 6,
1994, from Mr. Ronald L. Lambert, P.E., Mulhern MRE, Inc., regarding the
effective FIS report and Flood Insurance Rate Map (FIRM) for the Town of
Parker, Colorado. Mr. Lambert requested that we revise the effective FIRM to
show the effects of the realignment and associated channelization of Sulphur
Gulch from approximately 1,500 feet to approximately 100 feet downstream of
Parker Road. The realignment and associated channelization of Sulphur Gulch
are due to the construction of a Safeway Stores, Inc., grocery store. This
request follows up on a Conditional Letter of Map Revision (CLOMR), which was
issued on January 20, 1994.

All data required to complete our review of this request were submitted with
Mr. Lambert's October 6 letter and facsimile transmittals dated October 24
and November 18, 1994, and with a letter dated November 17, 1994, from
Mr. Fred Koch, P.E., County Engineer, Douglas County. All fees necessary to
process this Letter of Map Revision (LOMR), a total of $1,610, have been
received.

We have completed our review of the submitted data and the flood data shown
on the effective FIRM, and have revised the FIRM to modify the elevations and
floodplain and floodway boundary delineations of a flood having a 1-percent
probability of being equaled or exceeded in any given year (base flood) along
Sulphur Gulch from approximately 1,500 feet to approximately 100 feet
downstream of Parker Road. As a result of this revision, the base (laO-year)
flood elevations (BFEs) increase in some areas and decrease in other areas.
The BFE increases are all contained in the realigned channel. Due to the
channel realignment, the Special Flood Hazard Area also increases but the
lOa-year flood is contained in the channel. All impacted property owners
were notified of this revision before the issuance of the January 20, 1994,
CLOMR. The revised floodway boundaries are coincident with the 100-year
floodplain boundaries. Because o~ the channel improvements, the stream
length has been shortened. To account for the difference, an equality is
shown on Profile Panel 11P.